Telerik already provide PDF Viewer for Silverlight, this control is very common used and safe our time to display PDF without using client's browser plugin. 

It will be great this control to be available in ASP.NET, we will not spending IT budget for another controls.

Telerik we know you can do it, this will make you more competitive.

FIX: Menu popup containers do not have background / border in metro skin

Similar to the Silverlight one:
http://demos.telerik.com/silverlight/#GanttView/FirstLook

a TIFF viewer that can zoom in and out and possibly edit TIFFs.

There is a refresh error when a user uploads multiple files on Mac OS 10.8.3 and Safari 6.0.4. After the user selected for example 5 files at the same time and click on the Upload button, you a screen showing only 2 files - http://screencast.com/t/gYiE76M0D

The EnableAsyncUpload property of FileExplorer have to be set to "True".

The developer cannot get a reference to the FontName tool through the getToolByName method of the RibbonBar tool adapter.

Since Responsive Design is the actual trend, and most of the free frameworks have compatibility issues with Telerik Controls due to the Global Styles, I suggest a new Responsive Framework. A Telerik Responsive Framework, that out of the box would work perfectly with all the Telerik suite. I believe that this would be very appreciated by all your customers. Some of the controls should also be prepared to work with this framework resizing it's elements according to the device.

Some colors (for example #ccffff, #ccccff, #e5f2ff, #eef9fc, #003366, #006400) are not properly  applied in the Colorize tab of the Visual Style Builder and choosing one of them results in setting a different color.

Currently Telerik RadGrid does not support a GridCalculatedColumn inside a GridTemplateColumn. GridCalculated Column is a veru useful feature and should be available inside a Template column as well.

Thanks

I see a lot of forum chatter, blog and code library pieces, for years now, about DblClick.
Like in the RadGrid, TreeView, TreeList, Combo, DropDownList, DropDownTree, etc. 
Why not implement this standard in the controls; ItemDblClick, RowDblClick server side in Grid for ie.

I am using Header Context Filter Menu for the RadGrid.I found the two different filter options with that but there is an "And" option where "Or" option makes more sense to use with compare to "And".Even I did not finding any option on RadGrid to change this "And" option to "Or". Waiting for you kind response if you have any work arround or fix for this as i am in b/w of the development and found this. So let me know as early as possible.

MaskedTextBoxSetting set with numbers in the mask does not allow numbers to be entered from the number pad area of the keyboard.

I have a Rad Grid with modal popup option for insert and update operation. When i insert or update some record for this rad grid the modal pop up doesn't close by clicking on save button in Internet Explorer 10 and hence the record is not saved. It works fine with previous versions of Internet Explorer and also with other browsers like Chrome and Firefox. Find the attachment for a related snapshot.

An ArgumentOutOfRange exception is thrown when using a horizontal barchart with AutoLayout = true.

[ArgumentOutOfRangeException: Length cannot be less than zero.
Parameter name: length]
   System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy) +10695301
   System.String.Substring(Int32 startIndex, Int32 length) +10
   Telerik.Charting.TextBlock.get_VisibleText() +194

When the control is modal it should create a second iframe behind the modal background like it creates one behind the popup itself. This will allow the modal background to stay above heavy-weight objects in IE as well.

The control will provide the ability to hover over an image and zoom-in the selected part in a previewer. Such control is available in Google Maps as shown in the attached screenshot Overview-Image-Map-Control.png. Yet another example is displayed in the second screenshot.

You can comment and share your examples or features you would like this control to support.

Examples:

http://demos.telerik.com/silverlight/#Treemap/AbsoluteValueBrushColorizer

Add your own example or features you would like a treemap control to have by commenting below.

When large zip files with a lot of files inside is uploaded, the httphandler throws an System.OverflowException "Value was either too large or too small for an Int32." This only happens in HTML 5 File API mode.